Question

denzel must practice piano for 210 minutes each week. He practices 30 minutes each day.Write a linear equation to represent the number of minutes denzel still has to practice afrer x days

Answer 1

The linear equation representing the number of minutes Denzel still has to practice after x days is y = 210 - 30x.

To represent the number of minutes Denzel still has to practice after x days, we can use a linear equation based on the given information.

Let y be the number of minutes Denzel still has to practice after x days. Since he practices 30 minutes each day, the total practice time after x days is 30x minutes. Denzel must practice for a total of 210 minutes each week. Therefore, the equation is:

y = 210 - 30x

This equation represents the remaining practice time (y) after x days of practicing 30 minutes each day. The term 210 - 30x accounts for the total practice time and subtracts the time spent practicing.

This is a linear equation because it has a constant rate of change (-30) representing the minutes practiced each day.

In summary, the linear equation is:

y = 210 - 30x

Answer 2

Number of minutes Denzel still has to practice after x days, N(x) = 210 - 30x

Explanation:

Denzel must practice piano for 210 minutes each week.

Total practice needed = 210 minutes

Total minutes practicing per day = 30 minutes

Let x be the number of days practiced

Total minutes practices after n days = 30x

Total remaining minutes = 210 - 30x

Number of minutes Denzel still has to practice after x days, N(x) = 210 - 30x